4KVA isolation transformer 3 phase step down

4KVA isolation transformer 3 phase step down

Reasonably priced 4KVA isolation transformers for sale, can be customized for any voltage.

The main function of the 4KVA 3-phase isolation transformer is to step down, which can step down the input voltage to the usable range output to meet the voltage requirements of your equipment. For example, step down the input voltage 380V to 200V/220V output.

High quality 4KVA 3-phase isolation transformers are manufactured and supplied by Shuogong Power, a leading transformer company in China.

We are a leading dry-type transformer manufacturer dedicated to providing voltage solutions to customers around the world.

Shuogong Power can customize a 4KVA isolation transformer that meets your voltage requirements. Whether you need a 4KVA single-phase transformer or a three-phase transformer, we can 100% meet your needs.

This 4KVA 3-phase isolation transformer has a total power of 4000VA, which can meet the various voltage requirements of your equipment and protect the safety of the equipment.


Basics Model SGB-4KVA
Phase 3 phase
Capacity 4 kVA
Technical Parameters Primary Voltage 380V (Optional: 120V/ 190V/ 208V/ 220V/ 230V/ 240V/270V/ 400V/ 415V/ 480V)
Secondary Voltage 200V/220V (Optional: 120V/ 190V/ 208V/ 230V/ 240V/ 380V/ 400V/ 415V/ 480V)
Frequency 50Hz / 60 Hz
Winding Material Aluminium/Copper wire (Optional)
Work Efficiency ≥95%
Insulation Resistance ≥50 MΩ
Electrical Strength 3000V AC/1 min
Noise <35-65dB (1 meter)
Insulation Grade H level
Wiring Mode Dyn11
Cooling Mode Dry type air cooling
Overload Capacity Allow more than 1.2 times rated load to work for up to 4 hours
Enclosure Protection Grade IP 24
Certificate CE
Warranty 12 months
Working Environment Temperature -15℃~+40℃
Humidity ≤90%RH, without condensation
Altitude <1000m, non corrosive gas and conductive dust


Transformer can only convert voltage and CANNOT convert frequency.
Transformer CANNOT convert single phase voltage to 3 phase voltage.
Input/output voltage, power rating and whether with shell of all transformers, can be customized according to clients’ requirements.

4KVA 3 phase isolation transformer price:

The retail price of a 4KVA three-phase transformer on the market is usually $1200-1400.

Here you will get exclusive deals from transformer manufacturers.

Contact us today for a discounted price on your 4KVA three phase isolation transformer.

The following is the price of 4KVA 3-phase isolation transformer currently on the market, which is for your reference only.

Items Price  Capacity source
4kVA 3 phase isolation transformer price $1424.21 270V to 120V Ato
4kVA 3 phase isolation transformer price $1175.75 240V to 240V peacosupport
4kVA three phase isolation transformer price $1214.33 380V to 220V Ebay

4 kVA Isolation Transformer Features:

  • To step down/up the 3 phase voltage 380V to 200V/220V.
  • Primary and secondary windings are separated by aluminium/copper shield.
  • Available in the circuit of AC 50Hz/60Hz.
  • Better protection, high quality workmanship.
  • better security.
  • Affordable price


Isolation transformers are currently mostly used for purification and maintenance of precision instruments, machine tools, and medical systems, preventing lightning strikes, anti-interference, and stably converting electrical energy.

In medical systems, especially those places where life is critical, such as surgical operating rooms, intensive care units, cardiac operating rooms, etc., the isolation transformer is like a door, connecting the unprotected area of the medical area and the electrical circuit of the protected area. separated.


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